Improvement in boot and shoe-heeling machines



dnitrd States @met .dtjijita WILLIAM RSPINNEY, O LYNN, MASSACHUSETTS,ASSIGNOR T0 GORDON y MCKAY, TRUSTEE.

Letters Patent No. 103,792, dated May 31, 1870.

IMPROVEMENT IN BOOT AND SHOEHEELING MACHINES.

The Schedule referred to in these Letters Patent and making part of thesame.

To all whom 'it may concern.-

Be it known that I, WILLIAM F. SPINNEY, of Lynn, in the county of Essexand State of Massacbusets, have invented an Improvement in Heeling-Machines; and I do hereby declare that the following, taken' inconnection with the drawing which accompanies and forms part of thisspecification, is a description of my invention sufiicient to enablethose skilled in the art to practice it..

In nailing heels to boots and' shoes by machinery, it has heretoforebeen the practice, where the nail-heads have been covered from view by atread-lift of leather, to use drivers of suol' length as not to' come tothe surface ofthe block containing the drivers, which surface is the oneacting upon the lift of the heel ,through which the nails enter, andbetween which and the opposed surface of the last within the boot orshoe the material of the heel is compressed, as explained in theapplication for United States Letters Patent by Charles W. Glidden,executed as of even date herewith. The nails are thusleft projectingbeyond the surface of the lift-through which they enter, say, about thetenth of an inch, and the driver-block is lowered, and the outer liftplaced thereon, and the support for the boot or shoe is raised avdistance slighly less than the thickness of said outer lift, which-isthen forced upon the projecting nail-heads when the driver-block israised. But, as there are holes in the driver-block in which the driversmove, and into which the nailsare entered before they are driven, itfollows, in the act of forcing the outer tread-lift of the heel upon thenails, that the leather is pushed into said holes, leaving a bunch orprojection of leather directly over each nail-head on the tread-surfaceof the tread-lift, which bunches or projections have to be cut olf, andthe surface finished.

Now, by my invention, I avoid the format-ion of suoli bunches, and,consequently, tho need of iinishing the tread-surface of the tread-lift;and I accomplish this` by placing upon the upper surface of thedriver-block, or upon the uppersurface of any extensiompiece that issecured thereunto, a flat smooth plate, after the driver-block islowered and after the nails have been driven into the heel, but leftprojecting slightly, as bcfore explained. The outer tread-lift, that isto bc forced upon the projecting nail-heads, is then placed onsaidplate, the boot or shoe-support is raised a dis-y tance slightly lessthan the thickness of said plate and the thickness of the tread-lift,and said lift is then raised, and forced upon'the projecting nail-headsby the act of raising the driver-block; and it will be found that thesurface of the tread-lift is left smooth and free from bunches orprojections.

This invention is not confined, in its application, to any specificheel-nailing machine, though I shall herein describe it in connectionwith so much of a It will now be secu how, if a heel is placed onj, or

on the driver-block, with drivers adj usted as described, and with nailsover the drivers, and with a shoe propd erly sustained over the heel,the nails will, when the drivers are forced upward, be driven throughthe lifts of the heel into the sole, and how the lifts of thc heel, mustbe compressed together by the action of the u-p i per surface of jagainst the lift, through which thc nails enter; and it will also beseen that the nail-heads will he left projecting beyond thgJ lift,through which the nails enter just the distance which the drivers fallshort of comingto the surface, which supports and acts against saidlift. I add to this arrangement the plate u', -which I can place overthe upper surface ofj, and arrange it, preferably, as shown, by pivotingthe plate u', so that I can swing it over thc nail and driverholes, asin fig. 3, or so that Ican uncover them, as in tig. 2. i

In driving the nails, I leave plate u in the position seen in fig. 2,and then I lower platej and the parts connected therewith, swing plate uto the position seen in fig. 3, and place thereon a lift of leather,which makes the tread of a heel, with the breast of the tread-liftagainst a gauge-projection on the plate, which projection is plainlyseen in the drawing.

"lo `bring the breast-gauge projection to the right position on plate j,I insert therein a register-pim c',

which checks the plate u at the proper place, orregisters it, the slotat w embracing the piu t" when plate j is in position for receiving thetread-lift. Then I raise the support of thcshoe a distance about equalto or slightly less than the thickness of the tread-lift and plate u',and cause plate j and parts connected therewith torise, which results inthe forcing of thc tread-lift upon the projecting nails, which, however,do not project far enough to come throughthe lift, so

that thc nail-l-llea'ds are completely covered, and the tread-lift issecurely attached to and made part of thc heel.

With the drivers It falling short of the surface of j, it will be seenthat the leather is compressed at the time the nails are driven, so thatthe heel is just as Also, the construction of'said plate with aregistergauge, when said plate is provided with means Ifor registeringits position on the piece j, or the driverblock.

WM. F. SPINNEY,

C. W. MELGHER,

\ Witnesses:

| J AMES. PURINTON.

